Source: Air Carrier Traffic Statistics-Monthly," a publication of hte U.S.
Civil Aeronautics Board, based upon the Form 41 T-Schedule traffic collected
pursuant to 14 C.F.R. Part 241.
Final Data (1974-1998) includes figures from DataBank 28.

NOTE: The traffic data presented on this page is reported to the Department
of Transportation on BTS Form 41 by Large Certificated Air Carriers to
include carrier groups: Majors, Nationals, Large Regionals, and Medium Regionals.
Traffic statistics for Small Certificated Air Carriers and Commuter Air
Carriers are not included.